.double2 {
  display : block;
  width   : 30px;
  height  : 30px;
  margin  : 30px auto;
  position: relative;

  &::before,
  &::after {
    content      : '';
    display      : block;
    width        : 10px;
    height       : 10px;
    border-radius: 50%;
    background   : #98bff6;
    position     : absolute;
    top          : 5px;
    left         : 15px;
  }

  &::before {
    animation: double_lt 2s linear infinite;
  }

  &::after {
    animation: double_gt 2s linear infinite;
  }
}



@keyframes double_lt {
  0% {
    transform: scale(1) translate(-8px, 0)
  }

  25% {
    transform: scale(0.5) translate(0, -7px)
  }

  50% {
    transform: scale(1) translate(8px, 0)
  }

  75% {
    transform: scale(1.5) translate(0, 2px)
  }

  100% {
    transform: scale(1) translate(-8px, 0)
  }
}

@keyframes double_gt {
  0% {
    transform: scale(1) translate(8px, 0)
  }

  25% {
    transform: scale(1.5) translate(0, 2px)
  }

  50% {
    transform: scale(1) translate(-8px, 0)
  }

  75% {
    transform: scale(0.5) translate(0, -7px)
  }

  100% {
    transform: scale(1) translate(8px, 0)
  }
}


.loading {
  width     : 80px;
  height    : 40px;
  margin    : 0 auto;
  margin-top: 100px;

  span {
    display      : inline-block;
    width        : 8px;
    height       : 100%;
    border-radius: 4px;
    background   : lightgreen;
    animation    : load 1s ease infinite;

    &:nth-child(2) {
      animation-delay: 0.2s;
    }

    &:nth-child(3) {
      animation-delay: 0.4s;
    }

    &:nth-child(4) {
      animation-delay: 0.6s;
    }

    &:nth-child(5) {
      animation-delay: 0.8s;
    }

  }
}


@keyframes load {

  0%,
  100% {
    height    : 40px;
    background: lightgreen;
  }

  50% {
    height    : 70px;
    margin    : -15px 0;
    background: lightblue;
  }
}


.loading2 {
  width        : 150px;
  height       : 4px;
  border-radius: 2px;
  margin       : 0 auto;
  margin-top   : 100px;
  position     : relative;
  background   : lightgreen;
  animation    : changeBgColor 1.04s ease-in infinite alternate;

  &::after {
    content      : '';
    display      : inline-block;
    width        : 16px;
    height       : 16px;
    border-radius: 50%;
    background   : lightgreen;
    position     : absolute;
    margin-top   : -7px;
    margin-left  : -8px;
    animation    : changePosition 1.04s ease-in infinite alternate;
  }
}

@keyframes changeBgColor {
  0% {
    background: lightgreen;
  }

  100% {
    background: lightblue;
  }
}

@keyframes changePosition {
  0% {
    background: lightgreen;
  }

  100% {
    margin-left: 142px;
    background : lightblue;
  }
}


.loading3 {
  width     : 150px;
  height    : 15px;
  margin    : 0 auto;
  position  : relative;
  margin-top: 100px;

  span {
    position     : absolute;
    width        : 15px;
    height       : 100%;
    border-radius: 50%;
    background   : lightgreen;
    animation    : load3 1.04s ease-in infinite alternate;

    &:nth-child(1) {
      animation-delay: 0.13s;
    }

    &:nth-child(2) {
      animation-delay: 0.26s;
    }

    &:nth-child(3) {
      animation-delay: 0.39s;
    }

    &:nth-child(4) {
      animation-delay: 0.52s;
    }

    &:nth-child(5) {
      animation-delay: 0.65s;
    }
  }
}

@keyframes load3 {
  0% {
    opacity  : 1;
    transform: translate(0px);
  }

  100% {
    opacity  : 0.2;
    transform: translate(150px);
  }
}

.loading4 {
  width     : 150px;
  height    : 15px;
  margin    : 0 auto;
  margin-top: 100px;
  text-align: center;

  span {
    display     : inline-block;
    width       : 15px;
    height      : 100%;
    margin-right: 5px;
    background  : lightgreen;
    animation   : load4 1.04s ease infinite;

    &:last-child {
      margin-right: 0px;
    }

    &:nth-child(1) {
      animation-delay: 0.13s;
    }

    &:nth-child(2) {
      animation-delay: 0.26s;
    }

    &:nth-child(3) {
      animation-delay: 0.39s;
    }

    &:nth-child(4) {
      animation-delay: 0.52s;
    }

    &:nth-child(5) {
      animation-delay: 0.65s;
    }
  }
}



@keyframes load4 {
  0% {
    opacity: 1;
  }

  100% {
    opacity: 0;
  }
}


.loadEffect {
  width     : 100px;
  height    : 100px;
  position  : relative;
  margin    : 0 auto;
  margin-top: 100px;

  span {
    display      : inline-block;
    width        : 16px;
    height       : 16px;
    border-radius: 50%;
    background   : lightgreen;
    position     : absolute;
    animation    : loadEff 1.04s ease infinite;

    &:nth-child(1) {
      left           : 0;
      top            : 50%;
      margin-top     : -8px;
      animation-delay: 0.13s;
    }

    &:nth-child(2) {
      left           : 14px;
      top            : 14px;
      animation-delay: 0.26s;
    }

    &:nth-child(3) {
      left           : 50%;
      top            : 0;
      margin-left    : -8px;
      animation-delay: 0.39s;
    }

    &:nth-child(4) {
      top            : 14px;
      right          : 14px;
      animation-delay: 0.52s;
    }

    &:nth-child(5) {
      right          : 0;
      top            : 50%;
      margin-top     : -8px;
      animation-delay: 0.65s;
    }

    &:nth-child(6) {
      right          : 14px;
      bottom         : 14px;
      animation-delay: 0.78s;
    }

    &:nth-child(7) {
      bottom         : 0;
      left           : 50%;
      margin-left    : -8px;
      animation-delay: 0.91s;
    }

    &:nth-child(8) {
      bottom         : 14px;
      left           : 14px;
      animation-delay: 1.04s;
    }
  }
}



@keyframes loadEff {
  0% {
    opacity  : 1;
    transform: scale(1);

  }

  100% {
    opacity  : 0.2;
    transform: scale(0.5);
  }
}


.loading5 {
  /* display: inline-block; */
  height             : 20px;
  width              : 20px;
  border-radius      : 50%;
  border             : 2px solid lightgreen;
  border-bottom-color: transparent;
  -webkit-animation  : load5 0.75s linear infinite;
  animation          : load5 0.75s linear infinite;
  margin             : 10px auto;
}

@-webkit-keyframes load5 {
  0% {
    -webkit-transform: rotate(0deg);
  }

  100% {
    -webkit-transform: rotate(360deg);
  }
}

@keyframes load5 {
  0% {
    transform: rotate(0deg);
  }

  100% {
    transform: rotate(360deg);
  }
}



.dot {
  display : block;
  width   : 32px;
  height  : 32px;
  position: relative;
  margin  : 10px auto;

  &::before,
  &::after {
    content      : '';
    display      : block;
    width        : 50%;
    height       : 50%;
    border-radius: 50%;
    background   : lightgreen;
    position     : absolute;
    top          : 50%;
    left         : 50%;
  }

  &::before {
    opacity  : 0.6;
    transform: scale(2);
    animation: bigDot 2s infinite;
  }

  &::after {
    opacity  : 0.4;
    transform: scale(0.1);
    animation: smallDot 2s infinite;
  }
}



@keyframes bigDot {
  0% {
    transform: scale(2)
  }

  50% {
    transform: scale(0)
  }

  100% {
    transform: scale(2)
  }
}

@keyframes smallDot {
  0% {
    transform: scale(0)
  }

  50% {
    transform: scale(2)
  }

  100% {
    transform: scale(0)
  }
}

.loading6 {
  margin: 20px auto;
  display: flex;
  justify-content: center;

  div {
    width                : 20px;
    height               : 20px;
    // float                : left;
    margin-right         : 5px;
    background-color     : #0179B5;
    -webkit-border-radius: 50%;
    -moz-border-radius   : 50%;
    border-radius        : 50%;

    &:nth-child(1) {
      -webkit-animation: loading6 0.5s ease 0s infinite alternate;
      animation        : loading6 0.5s ease 0s infinite alternate;
    }

    &:nth-child(2) {
      -webkit-animation: loading6 0.5s ease 0.1s infinite alternate;
      animation        : loading6 0.5s ease 0.1s infinite alternate;
    }

    &:nth-child(3) {
      margin-right     : 0;
      -webkit-animation: loading6 0.5s ease 0.2s infinite alternate;
      animation        : loading6 0.5s ease 0.2s infinite alternate;
    }
  }


}

@keyframes loading6 {
  from {
    /*缩放*/
    transform       : scale(1);
    background-color: lightcoral;
  }

  to {
    transform       : scale(0.5);
    background-color: #0179B5;
  }
}

/* 
@-webkit-keyframes loading {
  from {
    transform: scale(1);
    background-color: lightcoral;
  }

  to {
    transform: scale(0.5);
    background-color: #0179B5;
  }
}

@-moz-keyframes loading {
  from {
    transform: scale(1);
    background-color: lightcoral;
  }

  to {
    transform: scale(0.5);
    background-color: #0179B5;
  }
}

@-o-keyframes loading {
  from {
    transform: scale(1);
    background-color: lightcoral;
  }

  to {
    transform: scale(0.5);
    background-color: #0179B5;
  }
} */